Warp-stop mechanism for looms.



APPLICATION FILED AUG. 4, 1908.

Patented Nov. 22, 1910.

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C.v D. LANNING. WARP sToP MEGHANISM PoR LooMs. APPLI-0ATION FILED AUG. 4, 1908.

976,377. Patented N0v.22, 1910.

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G.ID. LANNING. WARP sToP MEGHANISM PoR Looms, A l APPLICATION FILED AUG. 4, 1908. 976,377', Patented Nov. 22, 1910.

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y C. D. LANNING. 4 WARP STOP MEGHANISM POR LOOMS. APPLICATION FILED AUG.'4,19oa.

Patented Nov. 22j, 1910.

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THE NoRms Ps1-sns co., wAsmNcraN, u. c.

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CHARLES D. LANNING', OF BOSTON, MASSACHUSETTS.

WARP STOP MECHANISM FOR LOOMS.

Specication of Letters Patent.

Continuation of application filed November 1'?, 1905, Serial No. 237,866. This application filed August 4, 1908. Serial No. 446,857.

To all whom it may concern:

Be it known that I, CHARLES D. LANNING, a citizen of the United' States of America, residing at Boston, in the county of Suffolk and Commonwealth of Massachusetts, have invented certain Improvements Appertaining to Warp Stop Mechanism for Looms, of which the following is a speciiication, this application beingI a continuation of applicants prior application Serial No. 287,866, filed Nov. 17, 1905.

A portion of the usual devices employed in connection with warp-stop mechanism in looms are bars or rods extending` transversely thereof, some of which support the warp threads, and also serve as lease-rods, and others engage and control the vertical movement of the drop-bars, which are hung upon the threads. Vhen changing warps in a loom or renewing broken or damaged dropbars, it becomes necessary to remove all or some of these rods; and so far as I am aware, to accomplish this it has heretofore been necessary to remove a part of the end frame of the loom, which freed all of the rods simultaneously and rendered it ditiicult to support and manipulate them.

My invention consists in means upon the frame for supporting these rods and on which each one may be readily placed or removed separately, without disturbing in any manner the others, or the loom-frame, and also in devices by which the rods may be readily secured or locked in place upon their supports and as easily released for the purpose of removal. One form of means for this purpose is illustrated in the drawings, wherein- Figure 1 is a perspective view of a portion of a loom-frame, showing the warp-support ing rods and drop-bar controlling rods in proper position, with a small portion of the warp-threads and drop-bars hung thereon, and the devices for securing the several bars in their supports. The middle portion of the bars and frame is broken away; Fig. 2 is a detail elevation of one end of the frame viewed from within, showing the device in full lines for securing the warp-rods in their supports, and in broken lines the device for securing the drop-bar rods; Fig. 3 is a side elevation of the same parts as are contained in Fig. 2; Fig. i shows a securing device for the drop bar guide rods, detached from the bracket, and with a slot at one side of the hole for the guide rod, so that the securing device may be swung to one side upon a pintle attachment at its upper end; Fig. 5 shows partly in end elevation and partly in section, a loom frame having my invention applied thereto; Fig. 6 is a detail in enlarged vertical section upon the line 6 6, Fig. 5, of a portion of a loom frame having my invention applied thereto, the drop-bars being omitted; Fig. 7 shows in end elevation means for supporting movable lease rods at one end of the loom frame; Fig. 8 is a side elevation of the construction shown in Fig. 7; Fig. 9 is a horizontal section upon the line 9 9, Fig. 7; Fig. 10 is an end elevation, viewed from within, of the end of the loom opposite that shown in Fig. 7 and representing my invention as there applied to the lease rods; Fig. 11 is a side elevation of the construction shown in Fig. 10; Fig. 12 is a horizontal section upon the line 12-12 of Fig. 10; Figs. 13 and 1i are views in end and side elevation respectively of a modiiied form of means for supporting movable lease rods at one end of the loom; and Figs. 15 and 16 are similar views of the opposite end of the loom, and representing my invention as there applied to the lease rods.

In the drawings, the improvements are illustrated as applied at one end only of the rods, and this will be sufficient for practical purposes; but it will be readily understood that these devices may be applied at both -ends of the rods if found desirable.

desired size, and at one end are fitted u on 100 suitable and preferably tapering studs 7 suitably secured in the end portion 1 of the loom. Suitably positioned beneath the drop bars and insulated at its ends from the loom frame is a contact bar 8 having connected 105 thereto a circuit wire 9 (see Figs. 1 and 6) which is suitably connected to a battery 10 or other Source of electrical energy (see Fig. 5), with which is connected by wire 11 a magnet 12 preferably stationarily mounted 110 upon the loom frame, and adapted when energized to attract the armature 13, and thereby through link 14 to position the bunter 15 in the path of the lay. hetallic guide bars 15 (see Fig. 1) serve as the opposite terminal for the drop bars.

lVhile the end part 1, 1 of the loom may be ofA any suitable construction, preferably, for convenience of application and adjustment, I attach to the upper part thereof brackets 1G, 16', and upon the inner face of Vthe bracket 16 form open, preferably U- shapedpockets, supports or partial bearings 17, 17, represented in full and dotted lines in Fig. 2, and into which an end of each of the lease rods 6 may be placed after the opposite ends have been slipped over the studs 7. While any suitable means may be provided to secure the lease rods in position, I preferably provide (see Figs. 1,2 and 3) a lockingleverflS-fulcrumed at'19 upon a projecting part 2O of the bracket 16. While separate levers or other locking or securing means'may. be provided for the lease rods, preferably the lower end of the lever 1S` is suitably widened toengage both lease rods, and is provided with sockets or partial bearings 2,0I at the lease rod contacting portions thereof to engage such rods.

The drop bar controlling rods may be conveniently supported and held in place in the: brackets 16, 16 by drilling holes 21 through` the bracket 16l and Sockets 22 partly, through the bracket 16, the rods beingfinserted-through theholes 21 and tnen threadedl through the drop bars into the sockets 22, Any suitable means may be employed to retain the rods'in position. In Figs. l1. andifisshowna retainingylatch or memben 23 adaptedto slidevertically upon theouter face of thebracket 16 and provided with an operating handle 24. The

latch -is slotted as-represented at 2,5 to receive a pin or bolt 26 extending from the bracket 16 and 'provided .with nut27.upon its outer end. A projectingfportion of the-bracket 16 may extend through the slot 25` to guide the` movement of thelatch. Ifidesiredthe latch.

mayi be fastenedin position by making the projection on the bracket slightly greater thanthe thicknessoffthe latch and tightening,- the nut 27 upon the vpin. As shownin Fig, 4, the latch may be constructed Ato swing upon a pivot, it being provided with a transverse slot` 29 to permitthe passage ofthe pin or bolt126. j support: of the latch or locking device, it may be-swung` into orout of locking relation-to the rods 2,12, from the frame, and it will be heldl by gravity in its-locking position. Similarly', the. lockingl lever 18-isheld'A byl gravity in locking p.osition.

In Figs, 7 to112 inclusive, yI have shown a modified `form ofvmyinvention wherein the Bv reason of the pivotal` without detachment lease rods 30-30 are so mounted upon the loom frame as to permit movement thereof freely up and down in conformity with any leveling' requirements of the warp, and also preferably toward the fell of the cloth, while at the same time supporting the warp threads against the additional weight of the drop bars. The several parts are so supported as to permit the described movements of the lease rods independently of the means for guiding the movement of an indieating drop bar and also of the means coperating with said indicating drop bar to stop the loom. The lease rods may be mounted in any suitable manner, for either simultaneous or independent movement, to accomplish these results.

As shown in Figs. 7 and 9, the lease rods 30, 30 are preferably mounted at` one end, as for example atV the right hand end viewing Fig. 1, upon an oscillatory member 31 loosely mountedupon a bolt 32 carried by a block 33 attached to or formed upon one face of the oscillatory member 31, and mounted for lateral, sliding movement in an elongated slotA 34 in the bracket 35, thereby permitting movement of the oscillatory member toward the fell of the cloth. Preferably a spring' 36 is interposed between the block 33 and the bracket 35 to cushion such movement. The oscillatory member 31 is provided with preferably tapering studs 37 to receive the ends of the lease rods. At the opposite end, and as shown in Figs. 10 to 12, the lease rods are mounted in partial bearings 3Sv formed upon-opposite portions of an oscillatory member 31, preferably similarly supported. Vihile any suitable means may b-e provided to secure the lease rods in position in said member, herein I have represented alocking lever' 39 pivoted atl 40 upon an extension 41 from the oscillatory member 31, said lever being preferab-ly forked or widened at its lower end and provided with partial bearings 42 to engage the lease rods and hold them firmly in position. Although separate locking levers may be provided for the lease rods, preferably a single lever is employed as in this form of the invention the lease rods have a simultaneous or dependent movement.. My invention may, however, be utilized in connection with leasing members supported independently of each other individually to conform to the leveling requirements of the warp.

In Figs. 13 to 16, Ihave shown one form of means effective for the purpose. Therein '(Figs. 13 and 14) the lease rods 43 are preferably supported at one endupon studs 44 projecting from rocking. arms 45 loosely mounted upon bolts 46 projecting from the loom frame, springs 47 being provided, which when under tension normally support the weight of thel lease rods, their supporting arms and coperating parts, so that'said arms are normally free of the stops 48, 48, and are free to move in accordance with the leveling requirements of the warp. At the opposite end, and as shown in Figs. 15 and 16, the arms 45 are provided with partial bearings to receive the ends of the lease rods 43 and are also provided with extensions 49 whereon are pivoted at 50 locking levers 5l, whose lower ends are provided'with partial bearings 52 to engage the lease rods and hold them in place. Any other suitable locking or securing means may be employed.

It is apparent that locking or securing means may be provided for both ends of the lease rods shown in Figs. 7 to 16.

While this invention is of general application, it is particularly applicable to those constructions of looms wherein the warp supporting` bars are employed as lease rods, as for instance in the Coldwell & Gildard Patent No. 690,636, January 7', 1902, wherein the warp threads pass under as well as over the rods, so that in the operation of the loom there is a tendency to lift the rods as well as to pull them forward when the lay beats up the weft, and wherein the tie rods or drop-bar cont-rolling rods have an upward strain put upon them by the drop-bars, due to the vertical vibration of the warp threads upon which they are supported.

Having thus described one type or embodiment of my invention, I desire it to be understood that although specific terms are employed, they are used in a generic and descriptive sense and not for purposes of limitation, the scope of the invention being set forth in the following claims.

Claims.

1. A loom having in combination a frame, transverse rods, open-bearing rod supporting devices upon the loom frame upon which the ends of said rods may be readily placed and removed without movement of said supporting devices, and rod holding means normally mounted for rod-releasing movement and structurally separate from said supporting devices but cooperating therewith to sustain said rods in position, and permitting, by reason of said normal mounting, the ready insertion and removal of said rods with respect to said supporting devices without disassembling of said holding means.

2. A loom having in combination a frame, transverse rods, open-bearing rod supporting devices supported by the loom frame, and upon which the ends of said rods may be readily placed and removed without movement of said supporting devices, and rod holding means structurally separate from said supporting devices and normally mounted for rod-releasing movement relad tive to the loom frame and coperating with said supporting devices to sustain said rods in position and permitting, by reason of said normal mounting for movement relative to the loom frame, the ready insertion and removal of said rods with respect to said supporting devices without disassembling movement of said holding means.

3. A loom having in combination a trame, transverse rods, open-bearing rod supporting devices supported by the loom trame and upon which the ends of said rods may be readily placed and removed withoutl movement of said supporting devices, and rod holding means structurally separate from said supporting devices and pivotally mounted for movement relative to the loom frame for rod-releasing normal movement and cooperating with said supporting devices to sustain the said rods in position, said rod holding means when swung upon their pivotal supports permitting the ready application of said rods to and their removal from said supporting devices.

Il. A loom having in combination a frame, transverse rods, opposite brackets supported upon the loom frame, one at least of said brackets being provided with open-bearing rod supporting devices upon which the ends of said rods may be readily placed and r-emoved without movement of said supporting devices, and rod holding means normally mounted for rod-releasing movement upon one at least of said brackets, and coperating with said supporting devices to sustain said rods in position, and permitting by reason of said normal mounting the ready insertion and removal of said rods with respect to said supporting devices without disassembling movement of said holding devices.

5. A loom having in combination a frame, transverse rods, open-bearing rod supporting devices supported by the loom trame, and to which the ends of said rods may be readily applied and removed without movement of said supporting devices, and rod holding means structurally separate from said supporting devices and normally mounted for rod-releasing movement relative to the loom frame and cooperating with said supporting devices to sustain said rods in position and permitting, by reason of their normal mounting, the ready application and removal of said rods with respect to said supporting devices without disassembling movement of said holding means.

6. l A loom having in combination a frame, transverse rods, rod supporting devices upon the loom frame constituting partial bearings for said rods and into-which partial bearings the ends of said rods may be readily placed and removed without movement of said supporting devices, and rod holding means structurally separate from said partial bearings and normally movable with respect thereto for rod-releasing movement and cooperating therewith to sustain said rods in position in said partial bearings and permitting, by reason of their movable mounting, the ready insertion and removal of said rods with respect to said partial bearings without disassembling movement of said holding means.

7. A loom having in combination a frame, hollow, transverse rods, projections supported by one side of the loom frame and adapted to enter and hold said rods at one end, open-bearing rod supporting devices supported by the opposite side of the loom frame and upon which the opposite ends of said rods may be readily placed and removed without movement of said supporting devices, and rod holding means normally mounted for rod-releasing movement at the same side of the loom frame as said supporting devices and structurally separate from the latter but cooperating therewith to sustain said rods in position and permitting, by reason of said movable mounting, the ready insertion and removal of said rods with respect to said supporting devices without disassembling movement of said holding means.

8. A loom having in combination a frame7 transverse lease rods, open-bearing rod supporting devices for said lease rods movably mounted upon the loom frame to permit movement of said lease rods to conform to the leveling requirements of the warp, the ends of said rods beingreadily applied to and removable from said supporting devices Without necessary movement of the latter, and holding means structurally separate from said supporting devices but coperating therewith to sustain said rods in position and movably mounted to conform inunison with said supporting devices to said leveling' requirements of the Warp and normally mounted for rod-releasing movement relative to said supporting devices, thereby to permit the ready insertion and removal of said rods with respect to said supporting devices without disassembling movement of said holding means.

9. A loom having in combination a frame, open-bearing rod supporting devices movably mounted upon the loom frame, a lease rod mounted upon said supporting devices and movable therewith in response to the leveling requirements of the Warp, and lease rod holding means structurally separate from said supporting devices but coperating therewith to sustain said rod in position and movable in unison with said devices to permit movement of the lease rod in conformity to the leveling requirements of the Warp, said holding means being normally mounted for rod-releasing movement relative to said holding means, thereby to permit the ready insertion and removal of said rods with respect to the supporting devices without dsassembling movement of said holding means. A

In testimony whereof, I have signed my name to this specification, in the presence of two subscribing Witnesses.

CHARLES D. LANNING.

Vitnesses IRvING U. ToWNsnND, ARTHUR E. CARSON. 

